I would say D. Osteoarthritis, presbyopia
Answer:
an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription. ... For example, all species require a mechanism by which transcription can be regulated in order to achieve spatial and temporal changes in gene expressio
Explanation:
according to Google
I'm not entirely sure on this one... But I think it's 1. cell division helps animals repair old cells..
like please